Category: 616-43-3

Category: chiral-oxygen-ligands. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 3-Methyl-1H-pyrrole, is researched, Molecular C5H7N, CAS is 616-43-3, about Study on porphyrin complex ligated with azaferrocene derivatives. Author is Nakashima, S.; Negishi, A.; Nakamura, J.; Okuda, T..

[5,10,15,20-Tetrakis(pentafluorophenyl)porphyrinato]iron complex ligated with azaferrocene has two crystal forms, while the corresponding complex ligated with 3-methylazaferrocene has only one crystal form. An introduction of Me substituent to the pyrrole ring makes a less stable complex.

If you want to learn more about this compound(3-Methyl-1H-pyrrole)Category: chiral-oxygen-ligands, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(616-43-3).

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 3-Methyl-1H-pyrrole(SMILESS: CC1=CNC=C1,cas:616-43-3) is researched.Computed Properties of C5H4O2. The article 《Oxidation of mono- and dimethylpyrroles》 in relation to this compound, is published in Gazzetta Chimica Italiana. Let’s take a look at the latest research on this compound (cas:616-43-3).

Reaction of 30% H2O2 with N-methylpyrrole gave 27% N-methyl-2-oxo-2,5-dihydropyrrole (I) R = Me, R1 = H). 2-methylpyrrole gave with 1 mole H2O2 42% hydroperoxide (II, R = H) and with 2 moles H2O2 22% peroxide (III, R = H); 3-methylpyrrole gave 53% I (R = H, R1 = Me); 2,3 dimethylpyrrolc gave IV, and 2,4-dimethylpyrrole gave with 1 mole H2O2 53% II (R = Me) and with 2 moles H2O2, III (R = Me), V, and VI.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 616-43-3, is researched, Molecular C5H7N, about Analysis of the NMR spectrum of 3-methylpyrrole, the main research direction is NMR pyrrole methyl.Formula: C5H7N.

Earlier work (F., S., S., 1970) on pyrrole and on its 2-derivatives is extended to 3-methylpyrrole. Observed and simulated spectra are shown for the N-decoupled spectra at 60 MHZ, and for the N-H proton in which the 14N nucleus and Me protous were decoupled and the 5-proton was perturbed. The chem. shills and coupling constants are tabulated. The best simulated spectrum is a 7-spin system. The compound was dissolved in acetone-d, with Me4Si as internal reference

If you want to learn more about this compound(3-Methyl-1H-pyrrole)Formula: C5H7N, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(616-43-3).

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 616-43-3, is researched, SMILESS is CC1=CNC=C1, Molecular C5H7NJournal, Organometallics called Regioselective Electrophilic Substitution and Addition Reactions at an N-Coordinated Pyrrolyl Ligand in (PMe2Ph)3Cl2Re(NC4H4), Author is DuBois, M. Rakowski; Vasquez, Lisa D.; Peslherbe, L.; Noll, B. C., the main research direction is crystal structure rhenium pyrrole bromopyrrole phosphine; rhenium pyrrolate phosphine preparation halo methyl addition; regioselective electrophilic addition halo methyl rhodium coordinated pyrrole.SDS of cas: 616-43-3.

The reaction of excess pyrrolyllithium with mer-(PMe2Ph)3ReCl3 gives the air-stable product mer-(PMe2Ph)3Cl2Re(NC4H4) (1), which was characterized by spectroscopic techniques and by an x-ray diffraction study. 1 Reacts with electrophiles to form new Re(III) complexes with regioselectively substituted pyrrolyl ligands. For example, reaction with 1 equiv of N-chlorosuccinimide forms the complex with a 3-chloropyrrolyl ligand, while reaction with excess reagent produces the 3,4-dichloropyrrolyl and 2,3,4-trichloropyrrolyl complexes. The regiochem. of the reactions was established from 1H NMR data, and the structure of the dibrominated (PMe2Ph)3Cl2Re(3,4-NC4H2Br2) (5) was confirmed by x-ray diffraction. Reaction of 1 with Me triflate produces after workup (PMe2Ph)3Cl2Re(3-NC4H3Me) (6), and further reaction of 6 with Me triflate yields (PMe2Ph)3Cl2Re(3,4-NC4H2(Me)2) (7). In contrast, triflic acid protonates the pyrrolyl ligand of 1 at the α-C to form [(PMe2Ph)3Cl2Re(NC4H5)]OTf (8), which was identified by an x-ray diffraction study. The Michael addition of di-Me acetylenedicarboxylate to the β-C of the pyrrolyl ligand in 1 also was characterized. Methods for the removal of the substituted pyrrolyl ligands from the Re center are described.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 3-Methyl-1H-pyrrole(SMILESS: CC1=CNC=C1,cas:616-43-3) is researched.Product Details of 60827-45-4. The article 《The transferability of the dynamic correlation energy in conjugated molecules》 in relation to this compound, is published in Chemical Physics Letters. Let’s take a look at the latest research on this compound (cas:616-43-3).

The dynamic correlation energy of the ground state of organic conjugated mols., calculated using the Colle-Salvetti functional, has been decomposed into fragment contributions obtained by integrating the functional inside sep. fragment volumes defined as proposed by Bader. It is shown that these contributions, properly renormalized, can be utilized for predicting in a satisfactory way the total correlation energy of oligomers obtained by condensation of pyrrole and methane mols.

If you want to learn more about this compound(3-Methyl-1H-pyrrole)Product Details of 616-43-3, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(616-43-3).

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 3-Methyl-1H-pyrrole(SMILESS: CC1=CNC=C1,cas:616-43-3) is researched.HPLC of Formula: 1569-17-1. The article 《Controlling the electro-mechanical performance of polypyrrole through 3- and 3,4-methyl substituted copolymers》 in relation to this compound, is published in RSC Advances. Let’s take a look at the latest research on this compound (cas:616-43-3).

Conducting polymers such as polypyrrole are biocompatible materials used in bioelectronic applications and microactuators for mechanobiol. and soft microrobotics. The materials are commonly electrochem. synthesized from an electrolyte solution comprising pyrrole monomers and a salt, which is incorporated as the counter ion. This electrosynthesis results in polypyrrole forming a three-dimensional network with extensive crosslinking in both the alpha and beta positions, which impacts the electro-mech. performance. In this study we adopt a ‘blocking strategy’ to restrict and control crosslinking and chain branching through beta substitution of the monomer to investigate the effect of crosslinking on the electroactive properties. Me groups where used as blocking groups to minimise the impact on the pyrrole ring system. Pyrrole, 3- and 3,4-Me substituted pyrrole monomers were electro-polymerised both as homo-polymers and as a series of co-polymer films. The electroactive performance of the films was characterised by measuring their electrochem. responses and their reversible and non-reversible film thickness changes. This showed that altering the degree of crosslinking through this blocking strategy had a large impact on the reversible and irreversible volume change. These results elaborate the importance of the polymer structure in the actuator performance, an aspect that has hitherto received little attention.

If you want to learn more about this compound(3-Methyl-1H-pyrrole)Product Details of 616-43-3, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(616-43-3).

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Marey, Therese; Arriau, Jean published an article about the compound: 3-Methyl-1H-pyrrole( cas:616-43-3,SMILESS:CC1=CNC=C1 ).Application In Synthesis of 3-Methyl-1H-pyrrole. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:616-43-3) through the article.

The energies of formation of 2-substituted pyrroles and 3-substituted pyrroles are almost the same; and the wavelengths of the π → π* electronic transition increase in the following order: H < Me < CN < CO2H < CH:NOH < CHO < NO2. Exptl. studies confirm the theoretical relation between wavelength and substituent. The larger bathochromic shifts are observed for the 2-substituted compounds If you want to learn more about this compound(3-Methyl-1H-pyrrole)Application In Synthesis of 3-Methyl-1H-pyrrole, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(616-43-3).

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《The protonation of pyrroles》. Authors are Chiang, Y.; Whipple, E. B..The article about the compound:3-Methyl-1H-pyrrolecas:616-43-3,SMILESS:CC1=CNC=C1).Related Products of 616-43-3. Through the article, more information about this compound (cas:616-43-3) is conveyed.

Formation of stable α-protonated salts of pyrrole and methylpyrroles in aqueous H2SO4 is demonstrated by their proton magnetic resonance spectra. The observed rates of deuterium exchange in N-methylpyrrole require, however, that β-protonation of the base occur at the faster rate in concentrated H2SO4 solutions The basicity constant of pyrrole is redetermined as pKa = -3.8, considerably below the currently accepted value, and the variation of the ratio of protonated to unprotonated base with H2SO4 concentrations, while self-consistent within the methylpyrrole series, differs from previously defined class acidity functions. The basicity constants vary with Me substitution in a semi-empirically predictable manner.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

HPLC of Formula: 616-43-3. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 3-Methyl-1H-pyrrole, is researched, Molecular C5H7N, CAS is 616-43-3, about Model reactions on roast aroma formation. III. Mass spectrometric identification of pyrroles from the reaction of serine and threonine with sucrose under the conditions of coffee roasting. Author is Baltes, Werner; Bochmann, Gloria.

Numerous alkyl- and acylpyrroles, two 2,3-dihydro[1H]pyrrolizines, furfurylpyrroles, and 1 furanylpyrrole were identified in the volatiles of roasting serine, threonine, and sucrose. The formation of the alkylpyrroles was suggested to proceed via a pyrolytic pathway because they were formed in the absence of sucrose. The retention indexes and mass spectra are reported together with selected mass spectrometric fragmentations. A large number of the identified compounds were also recognized in roast coffee volatiles.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Application of 616-43-3. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 3-Methyl-1H-pyrrole, is researched, Molecular C5H7N, CAS is 616-43-3, about Model reactions on roast aroma formation. III. Mass spectrometric identification of pyrroles from the reaction of serine and threonine with sucrose under the conditions of coffee roasting. Author is Baltes, Werner; Bochmann, Gloria.

Numerous alkyl- and acylpyrroles, two 2,3-dihydro[1H]pyrrolizines, furfurylpyrroles, and 1 furanylpyrrole were identified in the volatiles of roasting serine, threonine, and sucrose. The formation of the alkylpyrroles was suggested to proceed via a pyrolytic pathway because they were formed in the absence of sucrose. The retention indexes and mass spectra are reported together with selected mass spectrometric fragmentations. A large number of the identified compounds were also recognized in roast coffee volatiles.

Here is a brief introduction to this compound(616-43-3)Application of 616-43-3, if you want to know about other compounds related to this compound(616-43-3), you can read my other articles.

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate